BILLED BY PORSCHE as "the most sporting 911 yet", the new 2010 Porsche 911 GT3 RS - first revealed last month - has this week had its official unveiling at the Frankfurt Motor Show.

Powered by the same naturally-aspirated 3.8 litre flat six found in the 'regular' GT3, output for the new GT3 RS has been bumped up from 320kW to 335kW, making for more than 84kW per litre.

A wider track front and back gives the new RS greater grip and an even larger carbon-fibre wing on aluminium supports has been added to the rear of the beast.

The 3.8 litre flat six powertrain is mated to a six-speed manual transmission optimised for short gearshift travel, low weight and high efficiency.

Engineered specifically for performance throughout the rev range, the transmission in the GT3 RS has been set up with shorter ratios than those found in the GT3, deliberately conceding an even higher potential top track speed.

The GT3 RS is fitted with dynamic engine mounts, which, depending on the driving conditions, automatically adjust the stiffness and damping effect to suit.